Security Bulletin

Summary

IBM Rational Engineering Lifecycle Manager is shipped with an IBM Java Runtime Environment (JRE) that is based on the Oracle JRE. Oracle has released October 2013 critical patch updates (CPU) which contain security vulnerability fixes. The IBM JRE has been updated to incorporate these fixes as well as ones specific to itself.

Vulnerability Details

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Description: RELM is vulnerable to denial of service attacks triggered by specially crafted XML data. These vulnerabilities are in the XML parser and Java API for XML Processing (JAXP) of the IBM JRE used by RELM.

The attack is remotely exploitable, has low access complexity, and authentication is not required. Partial compromises to confidentiality, integrity, and availability impact may occur.

Description: The Apache Xerces-J XML parser is vulnerable to a denial of service attack, which could cause the XML parser to consume CPU resources for several minutes before the data is eventually rejected.

The attack is remotely exploitable and does not require authentication, but some degree of specialized knowledge and techniques are required. An exploit would not impact the confidentiality of information or the integrity of data, but the availability of the system can be compromised.

Description: Malicious XML data can cause a denial of service attack via vectors related to JAXP.

The attack is remotely exploitable, has low access complexity, and authentication is not required. An exploit would not impact the confidentiality of information or the integrity of data, but reduced performance or availability interruptions may occur.

Description: The XML4J parser is vulnerable to a denial of service attack, triggered by specially crafted XML data.

The attack is remotely exploitable and does not require authentication, but some degree of specialized knowledge and techniques are required. An exploit would not impact the confidentiality of information or the integrity of data, but reduced performance or availability interruptions may occur.

Related information

Acknowledgement

None

Change History

* 24 December 2013: Original copy published

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.